19641250

素因数分解:

$2^1\times 5^4\times {\mathrm{19}}^1\times {\mathrm{827}}^1$

素因数の和:868

約数の個数: 40

約数和(自身を含む): 38800080

約数和(自身を除く): 19158830

約数列:

[1, 2, 5, 10, 19, 25, 38, 50, 95, 125, 190, 250, 475, 625, 827, 950, 1250, 1654, 2375, 4135, 4750, 8270, 11875, 15713, 20675, 23750, 31426, 41350, 78565, 103375, 157130, 206750, 392825, 516875, 785650, 1033750, 1964125, 3928250, 9820625, 19641250]

約数ペア:

[(1, 19641250), (2, 9820625), (5, 3928250), (10, 1964125), (19, 1033750), (25, 785650), (38, 516875), (50, 392825), (95, 206750), (125, 157130), (190, 103375), (250, 78565), (475, 41350), (625, 31426), (827, 23750), (950, 20675), (1250, 15713), (1654, 11875), (2375, 8270), (4135, 4750)]